ON- Indicates Dolphin operation status
Will flash when switching ON power supply for few seconds.
Will remain lit for the reset of operation time.

Filter Bag- Indicates clogged filter bag
Will remain unlit during normal operation
Will flash when the filter bag fills up and needs cleaning.
Will remain lit when the filter bag is clogged and needs washing

Reset Button-
To reset filter bag indicator if indication light stays lit after the filter bag is already clean.